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Extensión del rango dinámico de la tomografía óptica coherente sensible a la fase
(RAFA - Santa Fé, 2019-10)
La tomografía óptica coherente sensible a la fase (PhS-OCT), también conocida como microscopía de fase (SDPM), es una técnica que se basa en la medición de la fase en la señal de interferencia obtenida por tomografía óptica ...
Large Axial Range Frequency-Domain Optical Low Coherence Interferometry
(2019-01-15)
In this paper, we propose a new experimental setup to extend the measurement range of frequency-domain low coherence interferometry (FD-LCI) from 3 mm to 2 cm. The FD-LCI can be extended to the technique of frequency domain ...
Feasibility and analysis of a system of two in tandem interferometers for optical coherence tomography
(IEE Explore Digital Library, 2017-12-18)
A signal obtained from a combined system of two interferometers of low coherence in the frequency domain is presented and analyzed. This system allows to expand the range of measurement offered by the conventional optical ...
Application of a long-rangesweptsource optical coherence tomography-based scheme for dimensional characterization of multilayer transparent objects
(2017-08-18)
This work presents the use of a recently develop edinter ferometric system based on the swept source optical coherence tomography (SS-OCT) technique, which allows the characterization of transparent and semitransparent ...
Characterization of reference standards for dirt by Laser Ablation Induced Photoacoustics (LAIP)
(2009-07-23)
Measurements of surface cleanliness and dirt characterization are important problems in a wide range of processes in industry and production. Standard methods are in most cases cumber some laboratory procedures that must ...
Simple method for thickness measurement in opaque samples with a Michelson-Sagnac interferometer
(2008-04-24)
We present in this work a method to measure thicknesses of opaque samples. The technique combines the use of low coherence interferometry with a Michelson-Sagnac configuration. This ring set-up let us to measure both faces ...
Dynamic Detection of Thicknesses in Polymer Deformation Based on the Optical Coherence Interferometry Technique
(2015-07-31)
We describe the implementation of the optical coherence interferometry (OCT) technique in the dynamic
measurement of the deformation of polymers. The experimental set-up of the interferometer system and the signal processing ...
Dual system increases the resolution of a low coherence interferometer system through a signal detector astigmatic focus
(2015-10-29)
La interferometría de baja coherencia en el espacio de Fourier (OCT-FD) es una técnica que permite medir distancia con valores típicos de rango dinámico en el orden de 3 mm y resolución por debajo de los 10 µm. En este ...
Spectral sensor resolution measurement improvements by temporal analysis
(IEEE Xplore, 2017-12-18)
In this work we present time domain interferometry (TDI) and spectral domain interferometry (SDI) techniques applied to a fiber optic Fizeau interferometer sensor. This class of sensor is capable of measuring parameters ...
Dual system increases the resolution of a low coherence interferometer system through a signal detector astigmatic focus
(2015-10-29)
The low coherence interferometry in Fourier space (FD-OCT) is a technique to measure distance with
typical values of dynamic range in the order of 3 mm and resolution below 10 microns. In this paper
we propose to combine ...